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From: "markp" <markwork66@yahoo.com>
Newsgroups: comp.lang.ada
Subject: Re: Using GNAT.Sockets
Date: 18 Apr 2005 02:01:07 -0700
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Duncan Sands wrote:
> Hi markp,
>
> > Thanks for your reply. In case (1), that is what is occuring. When
I
> > call Receive_Socket again to get the rest of the data, I'm
wondering if
> > the call will place the new data at the beginning of the item
buffer.
> > That would mean I would have to copy it out before I do a
subsequent
> > read. Is this the case?
>
> Suppose your buffer is My_Buffer, and after the first call you see
> Last < My_Buffer'Last (note that if Last < My_Buffer'First then the
> connection has gone down).  Then you can do the following:
>
>    procedure Receive_Socket
>      (Socket => My_Socket,
>       Item   => My_Buffer (Last + 1 .. My_Buffer'Last),
>       Last   => Last);
>
> > I do not want a higher level routine. I would like to stay withing
the
> > GNAT.Sockets package.
>
> GNAT.Sockets provides higher level routines - the stream stuff.
>
> Ciao,
>
> Duncan.

Duncan,

Thanks for your reply. It does what I want it to do. I have one other
question. My assumption is that I have to read the data into My_buffer,
which is of a type Stream_Elemet_Array. If there a way to read the data
directly into an Ada record type, as opposed to a Stream_Element_Array?
Otherwise, I will have to read the socket and then copy the bytes into
the record type and act on it there. Is there a way to avoid this extra
copy and go directly to my data type?

Thanks once again for your help,

Mark